Table 1.

Classification and distribution of molecular subtypes

	ER + and/or PR+		HER2		Ki67		CK5 + and/or EGFR+	Number included
Luminal A		+	-	< 15%				268/498
Luminal B (HER2−)		+	-	≥ 15%				116/498
Luminal B (HER2+)		+	+					36/498
HER2 type		-	+					28/498
5NP		-	-			-		12/498
BP		-	-			+		35/498

ER estrogen receptor, PR progesterone receptor, HER2 human epidermal growth factor receptor 2, 5NP 5 negative phenotype, BP basal phenotype, CK5 cytokeratin 5, EGFR epidermal growth factor receptor 1